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        <h1><a href="../index.html">All files</a> / <a href="index.html">src</a> ContextMenu.ts</h1>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import Menu from './Menu';
import { PanelPosition, PanelShowResult } from './Panel';
import config from './config';
import { contextMenuStyle } from './style';
import { ContextMenuOption } from './types/ContextMenuOption';
import { MenuOption } from './types/MenuOption';
import { injectCss } from './utils/utils';
&nbsp;
export interface MenuWrapper&lt;T&gt; {
  menu: Menu&lt;T&gt;;
  show(position: PanelPosition, payload?: T): PanelShowResult;
  hide(): void;
  destroy(): void;
  calcPosition: Menu&lt;T&gt;['calcPosition'];
}
export default class ContextMenu {
  /** store created Menu ins*/
  private storeMenus: Menu&lt;any&gt;[] = [];
&nbsp;
  contextMenuOption: ContextMenuOption;
  constructor(option: ContextMenuOption = {}) {
    this.hideMenuEventListener();
    const defaultConfig: ContextMenuOption = {
      width: config.defW,
      fixMenuWhenScroll: false,
      hideMenuWhenScroll: true,
    };
    this.contextMenuOption = Object.assign(defaultConfig, option);
    if (this.contextMenuOption.hideMenuWhenScroll) {
      this.scrollListener();
    }
  }
&nbsp;
  /** click and close menu listener */
  private hideMenuEventListener() {
    /* capture:true: prevent click the element that stopPropagation in click event. */
    window.addEventListener('click', this.clickEventFunc.bind(this), { capture: true });
  }
  /**
   * if click outside the contextmenu hide all menu. Inside menu click will do its own thing in `onclick` callback to hide menu.
   */
  private <span class="fstat-no" title="function not covered" >clickEventFunc(this: ContextMenu, e: MouseEvent | PointerEvent) {</span>
<span class="cstat-no" title="statement not covered" >    this.storeMenus.forEach(menu =&gt; {</span>
<span class="cstat-no" title="statement not covered" >      if (!menu.el) return;</span>
<span class="cstat-no" title="statement not covered" >      if (!menu.el.classList.contains('hide')) {</span>
        /**is click inside the contextmenu */
<span class="cstat-no" title="statement not covered" >        let isInside = false;</span>
<span class="cstat-no" title="statement not covered" >        let el: HTMLElement | null = { parentElement: e.target } as HTMLElement;</span>
        // eslint-disable-next-line no-cond-assign
<span class="cstat-no" title="statement not covered" >        while ((el = el.parentElement)) {</span>
<span class="cstat-no" title="statement not covered" >          if (el.classList.contains(config.panelClass)) {</span>
<span class="cstat-no" title="statement not covered" >            isInside = true;</span>
<span class="cstat-no" title="statement not covered" >            break;</span>
<span class="cstat-no" title="statement not covered" >          }</span>
<span class="cstat-no" title="statement not covered" >        }</span>
<span class="cstat-no" title="statement not covered" >        if (!isInside) {</span>
<span class="cstat-no" title="statement not covered" >          menu.hide();</span>
<span class="cstat-no" title="statement not covered" >        }</span>
<span class="cstat-no" title="statement not covered" >      }</span>
<span class="cstat-no" title="statement not covered" >    });</span>
<span class="cstat-no" title="statement not covered" >  }</span>
  /** if scroll hide all menu */
  private scrollListener() {
    window.addEventListener('scroll', () =&gt; {
<span class="cstat-no" title="statement not covered" >      this.hideAllMenu();</span>
    });
  }
&nbsp;
  /**
   * create a context menu
   * @param  menuOption menu option
   * @template Payload payload type
   * @returns
   */
  create&lt;Payload&gt;(menuOption: MenuOption&lt;Payload&gt;): MenuWrapper&lt;Payload&gt; {
    injectCss(config.menuCssId, contextMenuStyle());
    // if not set width ,use default width
    if (!menuOption.width) {
      menuOption.width = this.contextMenuOption.width;
    }
    // if (!menuOption.zIndex) menuOption.zIndex = this.contextMenuOption.baseZIndex; // use css to override
    if (this.contextMenuOption.fixMenuWhenScroll) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >      menuOption.position = 'fixed';</span>
<span class="cstat-no" title="statement not covered" >    }</span>
    if (this.contextMenuOption.arrowIcon) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >      menuOption.arrowIcon = this.contextMenuOption.arrowIcon;</span>
<span class="cstat-no" title="statement not covered" >    }</span>
&nbsp;
    const mainMenu = new Menu(menuOption);
    this.storeMenus.push(mainMenu);
    if (mainMenu.el) {
      document.body.appendChild(mainMenu.el);
    }
    return {
      menu: mainMenu,
      show: (position, payload) =&gt; this.showMenu(position, mainMenu, payload),
      calcPosition: mainMenu.calcPosition.bind(mainMenu),
      hide: mainMenu.hide.bind(mainMenu),
      destroy: () =&gt; this.destroy(mainMenu),
    };
  }
  /**
   * create a context menu async
   *
   * call this.create when first time, and return the created menu when next time.
   * @example
   * ```
   * const menu = contextMenu.createAsync([]);
   * menu().show(e, payload);
   * ```
   * @param menuOption
   * @template Payload
   * @returns a function wrapper this.create function
   */
<span class="fstat-no" title="function not covered" >  createAsync&lt;Payload&gt;(menuOption: MenuOption&lt;Payload&gt;): () =&gt; MenuWrapper&lt;Payload&gt; {</span>
<span class="cstat-no" title="statement not covered" >    let menu: MenuWrapper&lt;Payload&gt;;</span>
<span class="cstat-no" title="statement not covered" >    return () =&gt; {</span>
<span class="cstat-no" title="statement not covered" >      return menu || (menu = this.create(menuOption));</span>
<span class="cstat-no" title="statement not covered" >    };</span>
<span class="cstat-no" title="statement not covered" >  }</span>
  /**
   * show a menu and hide other menus.
   * @param {Menu} menu
   */
  showMenu&lt;T&gt;(position: PanelPosition, menu: Menu&lt;T&gt;, payload?: T) {
    this.hideAllMenu();
    return menu.show(position, payload);
  }
  hideAllMenu() {
    this.storeMenus.forEach(menu =&gt; menu.hide());
  }
  destroy(menu: Menu&lt;any&gt;) {
    menu.destroy();
    this.storeMenus = this.storeMenus.filter(menuItem =&gt; menu !== menuItem);
  }
}
&nbsp;</pre></td></tr></table></pre>

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